Seeing multiple close calls and failures of connection after LENS-853

Exception in thread "Thread-4" Exception in thread "Thread-10" java.lang.IllegalStateException: Unable to close lens connection with params LensConnectionParams{dbName='default', baseUrl='http://0.0.0.0:9999/lensapi', user=anonymous, lensConfs={}, lensVars={}, sessionVars={}}
	at org.apache.lens.client.LensConnection.close(LensConnection.java:206)
	at org.apache.lens.client.LensClient.closeConnection(LensClient.java:326)
	at org.apache.lens.cli.commands.BaseLensCommand.closeClientConnection(BaseLensCommand.java:92)
	at org.apache.lens.cli.commands.BaseLensCommand$2.run(BaseLensCommand.java:81)
java.lang.IllegalStateException: Unable to close lens connection with params LensConnectionParams{dbName='default', baseUrl='http://0.0.0.0:9999/lensapi', user=anonymous, lensConfs={}, lensVars={}, sessionVars={}}
	at org.apache.lens.client.LensConnection.close(LensConnection.java:206)
	at org.apache.lens.client.LensClient.closeConnection(LensClient.java:326)
	at org.apache.lens.cli.commands.BaseLensCommand.closeClientConnection(BaseLensCommand.java:92)
	at org.apache.lens.cli.commands.BaseLensCommand$2.run(BaseLensCommand.java:81)